Javascript-ajax asynchronous request data, iOS screen flashing

Make a chat page, Ajax asynchronous request data, regardless of whether there is no data return, iOS will flash a bit, and Android will not flash, this is how to solve

$ (document). Ready (function () {$ ('. Loading_box '). attr (' style ', ' display:none ');        Ajaxform ();     Window.setinterval ("Ajaxform ()", 3000);    });    function Ajaxform () {var id=$ (". Main_box ul Li:last-child"). Find ('. delete_btn '). attr (' field ');//alert (ID);  $.post ("{: U (' App/friends/ajaxform ')}", {"OpenID": OpenID, "id": id}, function (data) {if (data)            {var str = ""; Console.log (data);                  $.each (data, function (index, array) {if (array[' OpenID ']==openid) {if (array[' type ']==0) { Plain text or picture str= '
' +array[' uname ']+ '
' +array[' time ']+ '
' +array[' content ']+ '
Delete
'; }else{//My PA screen str= '
' +array[' uname ']+ '
' +array[' time ']+ '
A hefty splash screen ' +arr[array[' type ']]+ ' s ' +array[' content '; if (array[' img ']!= "") {str+= '; } str+= '
Delete
'; }}else{if (array[' type ']==0) {//plain text or picture str = '
' +array[' uname ']+ '
' +array[' time ']+ '
' +array[' content "]+ '
'; if (isadmin) {str+= ' remove pull black '; } str+= '
'; }else{//Others PA screen str= '
' +array[' uname ']+ '
' +array[' time ']+ '
A hefty splash screen ' +arr[array[' type ']]+ ' s ' +array[' content '; if (array[' img ']!= "") {str+= '; } str+= '
'; if (isadmin) {str+= ' remove pull black '; } str+= '
';              }} $ (". Main_box ul"). Append (str);            $ ('. Main_box '). ScrollTop ($ ('. Main_box ') [0].scrollheight];          }); }                             }    );}

Reply content:

Make a chat page, Ajax asynchronous request data, regardless of whether there is no data return, iOS will flash a bit, and Android will not flash, this is how to solve

$ (document). Ready (function () {$ ('. Loading_box '). attr (' style ', ' display:none ');        Ajaxform ();     Window.setinterval ("Ajaxform ()", 3000);    });    function Ajaxform () {var id=$ (". Main_box ul Li:last-child"). Find ('. delete_btn '). attr (' field ');//alert (ID);  $.post ("{: U (' App/friends/ajaxform ')}", {"OpenID": OpenID, "id": id}, function (data) {if (data)            {var str = ""; Console.log (data);                  $.each (data, function (index, array) {if (array[' OpenID ']==openid) {if (array[' type ']==0) { Plain text or picture str= '
' +array[' uname ']+ '
' +array[' time ']+ '
' +array[' content ']+ '
Delete
'; }else{//My PA screen str= '
' +array[' uname ']+ '
' +array[' time ']+ '
A hefty splash screen ' +arr[array[' type ']]+ ' s ' +array[' content '; if (array[' img ']!= "") {str+= '; } str+= '
Delete
'; }}else{if (array[' type ']==0) {//plain text or picture str = '
' +array[' uname ']+ '
' +array[' time ']+ '
' +array[' content "]+ '
'; if (isadmin) {str+= ' remove pull black '; } str+= '
'; }else{//Others PA screen str= '
' +array[' uname ']+ '
' +array[' time ']+ '
A hefty splash screen ' +arr[array[' type ']]+ ' s ' +array[' content '; if (array[' img ']!= "") {str+= '; } str+= '
'; if (isadmin) {str+= ' remove pull black '; } str+= '
';              }} $ (". Main_box ul"). Append (str);            $ ('. Main_box '). ScrollTop ($ ('. Main_box ') [0].scrollheight];          }); }                             }    );}

Flashing is the page refresh, see if there is a re-render the page code.

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